CCS C Compiler Manual PCB / PCM / PCH

Built-in Functions
output_low(PIN_B0);
delay_us(period-duty);
} while(TRUE);
Example Files:
Also See:
ex_sqw.c
delay_ms(), delay_cycles(), #USE DELAY
disable_interrupts( )
Syntax:
Parameters:
Returns:
Function:
Availability:
Requires:
Examples:
disable_interrupts (level)
level - a constant defined in the devices .h file
undefined
Disables the interrupt at the given level. The GLOBAL level will not disable any
of the specific interrupts but will prevent any of the specific interrupts,
previously enabled to be active. Valid specific levels are the same as are used
in #INT_xxx and are listed in the devices .h file. GLOBAL will also disable the
peripheral interrupts on devices that have it. Note that it is not necessary to
disable interrupts inside an interrupt service routine since interrupts are
automatically disabled. Some chips that have interrupt on change for
individual pins allow the pin to be specified like INT_RA1.
Device with interrupts (PCM and PCH)
Should have a #INT_xxxx, constants are defined in the devices .h file.
disable_interrupts(GLOBAL); // all interrupts OFF
disable_interrupts(INT_RDA); // RS232 OFF
enable_interrupts(ADC_DONE);
enable_interrupts(RB_CHANGE);
// these enable the interrupts
// but since the GLOBAL is disabled they
// are not activated until the following
// statement:
enable_interrupts(GLOBAL);
Example Files:
Also See:
ex_sisr.c, ex_stwt.c
enable_interrupts(), clear_interrupt (), #INT_xxxx, Interrupts Overview,
interrupt_active()
173